Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Que rede atraiu 2,74 milhões de telespectadores para Supernatural?
 ###Tabelas: CREATE TABLE canada (canada_id AUTO_INCREMENT PRIMARY KEY, Team name (Affiliation) VARCHAR, Year started INT, Number of cars INT, Current car VARCHAR, Car # VARCHAR, Website VARCHAR) CREATE TABLE ratings (ratings_id AUTO_INCREMENT PRIMARY KEY, Season INT, Network VARCHAR, Timeslot VARCHAR, Season premiere VARCHAR, Season finale VARCHAR, TV season VARCHAR, Rank Rank denotes the relative position of the television series with respect to other prime time shows on the CW, FOX, NBC, CBS, and ABC. VARCHAR, Viewers in millions VARCHAR, Rating Rating is the percentage of all households tuned into the program. VARCHAR) CREATE TABLE most_assists (most_assists_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Years VARCHAR, MLS Cup INT, U.S. Open Cup INT, CONCACAF INT, Other INT, Total INT) CREATE TABLE democratic_primary (democratic_primary_id AUTO_INCREMENT PRIMARY KEY, Source VARCHAR, Date VARCHAR, Jody Wagner VARCHAR, Pat Edmonson VARCHAR, Michael Signer VARCHAR, Rich Savage VARCHAR, Jon Bowerbank VARCHAR, Undecided VARCHAR) CREATE TABLE playoff_statistics (playoff_statistics_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Nationality VARCHAR, Position VARCHAR, Appearances INT, Starts INT, Minutes INT, Goals INT, Assists INT)  
SELECT Network FROM ratings WHERE Viewers in millions = 2.74